Arrangement for recreating a model of a dental product

ABSTRACT

In an arrangement for recreating a model, use is made of an original model ( 1 ) of implant and/or tooth remnants ( 2-5 ) in a system for producing a dental construction ( 32 ). The system includes a reading apparatus ( 10, 13 ) and a first levelling function ( 6 ). A reproduction of all or part of the original model is created in CAD equipment. The said dental construction is created in the CAD equipment, and the reproduction and the construction are divided up into parts whose axes of inclination and contact surfaces are identified in terms of position and direction. Replicas of the implant and/or tooth remnant parts and the construction parts are produced and mounted on a mounting member ( 23 ) after bore holes for the replicas of the tooth remnant parts have been established using boring equipment. The said bore holes are established by means of a second levelling function and the bore holes receive positions and longitudinal axis inclinations which correspond to the positions and the inclinations of corresponding axes in the original model. The replicas for the tooth remnant parts can be fixed in terms of angle of rotation in the mounting member with position-fixing members (identification members). The last-mentioned replicas form the recreated model on which the construction replicas can be applied.

TECHNICAL FIELD

The present invention relates to an arrangement and method forrecreating all or part of a model of a dental product, or instrument fora dental product, from information implemented in or supplied tomanufacturing equipment, preferably in the form of CAD equipment. Inthis equipment, the model/model part with associated implant and/ortooth remnant(s) in a jaw bone can be simulated, and the simulatedmodel/model part can be completely or partially divided into the implantand/or tooth remnant parts. For recreating the model/model part,information can be extracted from the manufacturing equipment.

The invention can, for example, be applied to an arrangement or methodwhich uses an original model of tooth remnant parts in conjunction withproduction systems for a dental construction, for example in the form ofa dental bridge, moulds for casting, pressing, etc. In one embodiment,the arrangement can be of the type in which the system comprises areading apparatus which reads a tooth remnant representation in theoriginal model and works preferably in the polar coordinates system witha reading axis inclined in relation to the respective reading surface.In addition, a levelling function can also be included so that it ispossible, on each reading of the tooth remnant part representation inthe original model, to read all the outer surface areas of therespective representation. In addition, the system uses CAD equipmentwhich, with the aid of position information obtained from the readingand levelling functions, is arranged to display a reproduction orsimulation of all or part of the original model. In interaction with auser, it is possible, on the said reproduction or simulation, on the onehand to produce the said construction/product or to divide theconstruction up into construction parts and identify the contactsurfaces of the construction parts in terms of position and directionaccording to dental rules, and, on the other hand, to produce replicasof the individual construction parts.

STATE OF THE ART

In the production of dental bridges, casting moulds and press moulds,etc., for dental constructions, it is already known to read and producethe dental construction or product in question in construction partswhich are sectioned and welded together according to the system ofdental rules. It is also known to scan individual tooth remnant elementsin an original model of the tooth remnant constellation in question.With levelling equipment it is in this case possible to transform theindividual element (the tooth remnant representation) to a centre, forexample a centre of rotation, around which the scanning is based. In theCAD equipment, tooth remnant representations of the original model canbe recreated in a three-dimensional environment, and in interaction withone or more users (computer equipment, databases, etc.) a constructionin question, for example a dental bridge, can be created in the computerenvironment. Each tooth part representation can be re-transformed in thecomputer environment about the said centre axis (axis of rotation), inwhich case, in a preferred embodiment, the manufacture of the individualelement can be undertaken in accordance with the reading principle, i.e.the reading system (the reading needle and bearing member for the toothremnant element) can move in the corresponding system according to whichthe machining is carried out. It should be noted here that reading andmachining in the polar coordinates system can afford advantages in theform of considerable accuracy of the construction produced, despite therelatively small amount of reading information, which means, inter alia,that the reading and machining times are relatively short. However, theinvention provides the possibility of scanning and machining indifferent coordinate systems.

It is also known to bring the construction parts thus manufacturedtogether in welding equipment and, in this equipment, to laser-weld theconstruction parts via established contact surfaces.

It is also known that a dentist or dental technician can order a dentalproduct via a telecommunications and/or computer connection. The producthas in this case been tested in the original model for determining thecorrect fit, appearance, etc., after which any readjustments have beenmade.

DESCRIPTION OF THE INVENTION TECHNICAL PROBLEM

There is a need to be able to reduce the manufacturing times fordifferent dental constructions or products or instruments for theconstructions/products. It is known that dental bridges in particularcan represent complex designs, which also require extremely highmanufacturing precision (tolerances of about 0.01 mm). In cases wherethe manufacturing system and the original model are at differentlocations, the products or the original model have to be sent betweenthe locations, which causes delays due to the postal service or othertransport. The invention solves this problem, among others.

Hitherto, the manufacturing parts for dental bridges, especiallycomplicated ones, have been long and have required great manual skill.It is expedient to be able to transfer or centralize areas of this skillto places and locations where there is expertise in machine handling.This paves the way for accelerated handling, while retaining highprecision results. The invention is intended to solve this set ofproblems, among others.

The invention is based on the insight of manufacturing dental bridges bysectioning or dividing up the dental bridge construction generated inthe computer equipment. There are special technical requirements thatcontact surfaces between construction parts must be indicated in thecomputer equipment and maintained through the manufacture of theconstruction parts and on transfer to the welding equipment. It is notalready known to be able to create, for example, a whole dental bridgein a single unit. The invention also solves this problem.

In accordance with the invention, a levelling function is to be used fortransforming starting positions and starting inclinations to reading andmachining positions and reading and machining inclinations. It isimportant that an effective technical connection can be obtained betweenthe reading, machining and levelling functions. The invention solvesthis problem too.

In the present invention, use is also made, in one embodiment, of therecognition that levelling panels afford the possibility of inputtinginformation in a three-dimensional CAD environment. In this case, aposition-fixing member (identification member) is used. The read-offdata, the position-fixing members and information on the position of themember in the structure are sufficient for structure data to betransformed to a defined position in the three-dimensional reproduction.When all the necessary structures (representations) have been presentedat their respective places in the CAD environment, construction work canbegin. In accordance with the above, the said construction work canconstitute the construction of a bridge on a number of prepared teeth,distancing pieces adapted to fixtures, etc. The dental constructionsare, in accordance with the above, built up by forming individual partswhich are then joined together to form a more complex structure, whichmeans that the cross-sections which are later to be joined together areset out and dimensioned in accordance with current dental rules. Thecross-section is given a position and a direction. The milling can takeplace with a centre of rotation which is identical to the centre ofrotation upon reading. To achieve a very good final result, it isimportant that the abovementioned principles can be complied with in thenovel arrangement and method associated with the invention. Theinvention solves this problem too.

SOLUTION

In accordance with the concept of the invention, a model will berecreated using the data of the original model input to themanufacturing equipment. That which can principally be regarded ascharacterizing an arrangement according to the invention is that thesaid information is representative of angles of inclination for two ormore longitudinal axes belonging to the said implant and/or toothremnant(s). Replicas of the said implant and/or tooth remnant parts canbe individually produced by means of the manufacturing equipment. Eachimplant and/or tooth remnant part is designed with or comprises aposition-fixing member (can also be called identification member) tomake it possible to determine the individual position of rotation andinclination of the part in the recreated model/model part. Controlmembers for one or more levelling panels and/or one or more boringmachines receive the said information as control information to make itpossible to form holes in a mounting member in which the holes receiveangles of inclination for their longitudinal axes and positionsaccording to the longitudinal axis inclinations and the positions forthe implant and/or tooth remnant(s) of the simulated model/model part.The mounting member is arranged to receive the individually producedreplicas via the holes which have been made. The replicas can be appliedin the holes via their position-fixing members, and after thisapplication the recreated model/model part has been formed.

In one embodiment, the manufacturing equipment is also arranged topermit application, on the manufacturing equipment's simulated variant,i.e. the picture displayed on a computer screen or equivalent, of themodel of the product or instrument. The manufacturing equipment alsopermits division of the product or instrument into product or instrumentparts. The said replicas can be individually produced by means of themanufacturing equipment. The last-mentioned replicas can also be appliedon the replicas of the implant and/or tooth remnant parts applied on themounting member.

The mounting member with associated replicas of implant and/or toothremnant parts and, arranged in turn on these, replicas of product orinstrument parts can be applied in jig (welding jig) in order to permitwelding, by means of welding members, of the replicas of the product orinstrument parts via contact surfaces which correspond to contactsurfaces on the product or instrument parts in the simulated and dividedvariant on the computer screen of the manufacturing equipment. Controlmembers for the said welding and/or jig members receive, as controlinformation from the manufacturing equipment, second information whichis representative of contact surfaces of the product or instrumentparts, and by means of which last-mentioned control information thereplicas for the product or instrument parts are welded together.

In one embodiment, the simulated model/model part can also comprise oneor more whole teeth which represent divided tooth parts of themodel/model parts. Replicas of the said whole tooth parts withassociated position-fixing members can be manufactured by means of themanufacturing equipment. The said mounting member can be arranged, onthe one hand, for formation of holes in a corresponding manner for eachtooth part as for the replicas for the implant and/or tooth remnantparts, and, on the other hand, for receiving each tooth part via itsposition-fixing member for forming the model/model part. The mountingmember is arranged to receive, in each hole formed, a member which isincluded in a member for fixing the angle of rotation of the replica ofthe implant, tooth and/or tooth remnant part in question. The member forfixing the angle of rotation can be applied from the underside of themounting member. In one embodiment, the member for fixing the angle ofrotation can be arranged with a first unit which cooperates with thematerial of the mounting member in order to prevent rotation of thefirst unit relative to the mounting unit. The member for fixing theangle of rotation can also be provided with a second unit which servesas a storage unit for the replica in question. The second unit can havestop members for fixing the angle of rotation, by means of which acorresponding member in the replica cooperates in order to preventrotational movements relative to the storage unit and thereby to preventrotational movement between the replica and the mounting member. Thefirst and/or second units and the replica can have two semicircularparts which can cooperate via their straight side surfaces in order toprevent the said rotational movements between the replica and themounting or bearing member.

A method according to the invention can principally be regarded as beingcharacterized by the fact that angles of inclination for two or morelongitudinal axes belonging to the said implant and/or tooth remnant(s)are represented by the said information. Replicas of the said implantand/ or tooth remnant parts are produced by means of the manufacturingequipment, and each implant and/or tooth remnant part is designed with aposition-fixing member to make it possible to determine the individualposition of rotation and inclination of the part in the recreatedmodel/model part. The said information is received by control membersfor one or more levelling panels and/or one or more boring machines ascontrol information, by means of which holes are formed in a mountingmember in which the holes are given angles of inclination for theirlongitudinal axes and positions according to the longitudinal axisinclinations and the positions for the implant and/or tooth remnant(s)of the model/model part. The individually produced replicas of theimplant and/or tooth remnant parts are applied in the holes via the saidposition-fixing members.

In one embodiment, a first levelling function is used for reading therespective implant and/or tooth remnant on the original model.Adjustment of the first levelling function from the respective startingposition and starting inclination to the position and inclinationcorresponding to the reading position and the reading inclinationestablishes a signal transmission which is part of or forms the controlof a second levelling function which effects the return from theposition or inclination corresponding to the reading position andreading inclination to the said starting position and startinginclination. The signal transmission is preferably stored for reuse(control) of the second levelling function. The signal transmission issupplied to the manufacturing equipment and supply is in this context tobe considered in its widest interpretation. The signal transmission canbe transferred to the manufacturing location and does not itself requireto be implemented in the equipment, but is simply saved.

ADVANTAGES

The invention makes available a less expensive manufacturing chain forthe dental construction in question, while maintaining the high level ofaccuracy. The novel manufacturing principle means that the dental bridgemanufacture is not completely dependent on the professional skill of thedental technician and dentist on site, but instead some of this skillcan be centralized at a place with advanced mechanical supportequipment. The treatment time for the patients can be substantiallyreduced. Conventional and well-proven equipment components can be usedin the production of the dental construction. Thus, for example, knownlevelling panels can be used. It has been found that the manufacturingtime, even for complex dental constructions, can be reduced by about 50%in relation to present-day methods and production techniques, byeliminating the need to transport models and products/instrumentsbetween different geographical locations. This increases the profits andreduces the costs to the end user. With the aid of the respectiveposition-fixing member, respective individual elements/replicas can beoriented and placed in a defined position on a plate/base or othermounting member. With the aid of a drill, a hole is made with thecorrect direction and position on the plate/base so that the originalmodel or the simulated variant of this is recreated. Thereafter, eachindividual part or replica of the milled bridge can be placed in thecorrect position. The information on where and in which direction thejoining surfaces are situated is unambiguous in relation to theplate/base. By placing the plate/base in a clear and well-defined mannerin the weld and thereafter indicating the position and direction of eachjoining surface, the weld can, in accordance with the previously knowntechnique, identify the surfaces and join these together. A recreatedmodel (of the original model) can be obtained at the manufacturing siteand can be used as weld cushion for the product (tooth, bridge,instrument, etc.) which is to be welded together.

DESCRIPTION OF THE FIGURES

A presently proposed embodiment of an arrangement and method accordingto the invention will be described hereinbelow with reference to thefigures, where:

FIG. 1 is a perspective view of an original model with representationsfor tooth remnant parts, whole teeth and a jaw bone,

FIG. 2 is an outline diagram of the application of the original model ona first levelling panel, a reading function for respective tooth remnantor equivalent, signal-generating members which generate signals via atransport medium to CAD equipment with computer screen and terminal, bymeans of which manufacturing equipment signals are generated,

FIG. 3 is a perspective view of production equipment for the recreatedmodel, which production equipment comprises a second levelling panel,boring equipment, and control members for the levelling panel and/orboring machine used for making holes in a mounting member applied on thelevelling panel,

FIG. 4 shows a weld jig to which the mounting member according to FIG. 3has been transferred with collected replicas of implant and/or toothremnant parts and product or instrument parts, and FIG. 4 also shows aproduct or instrument/instrument part produced in the jig, and

FIGS. 5, 5 a show different views of an embodiment of a position-fixingmember which rotationally fixes a replica relative to the mountingmember.

DETAILED DESCRIPTION OF FUNCTION

In FIG. 1, reference number 1 shows an original model with tooth remnantrepresentations 2, 3, 4 and 5 from the mouth of a patient (not shown).In the present case, the representations 2-5 are located betweenotherwise whole teeth and are to be provided with a bridge in accordancewith what is stated below. The representations have individual positionsin or on the model and their longitudinal axes 2 a, 3 a, 4 a, 5 a haveindividual inclinations as a function of the bite, attitude of theteeth, etc.

According to the invention, in FIG. 2 a first levelling function is usedwhich can be obtained with a known levelling panel whose plane is shownby 6 and cardan suspension shafts by 7 and 8. With the aid of thelevelling function, a tooth remnant representation, for example 3, canbe defined in terms of position and inclination. The position isadjusted by means of displacing the original model on the plane (panel)6 and the inclination is adjusted by rotating the shafts 7 and 8. Thetransformations in the present case mean that the longitudinal axis 3 aof the tooth remnant representation 3 is shifted to a centre ofrotation, indicated below, and assumes a vertical bearing (perpendicularbearing). The tooth remnant representation, for example at 3 b, can bebuilt up from or consist of an implant (pin) 3 b.

The respective tooth remnant representation can be scanned in a knownmanner with a scanning function in which the representation is rotatedabout its vertical longitudinal axis 3 a, see rotation arrow 9. Thescanning function (scanning needle, optic beam, etc.) is shownsymbolically by 10. The scanning direction is angled towards the outersurface 3 c by an angle α. The scanning function 10 and the body (toothremnant representation) 3 are longitudinally displaced in a known mannerin the vertical direction in relation to one another.

Rotating the shafts 7 and 8 of the levelling function for the saidadjustment of the tooth remnant part 3 to the vertical position results,in a known manner, in a signal transmission i indicating the adjustmentof the plane 6 for obtaining the position and the inclination. In oneembodiment, the adjustment signal is stored in a unit 12 which is givenby the signals as a function of signals i1. The scanning functioncomprises a unit 13 which scans the reading and gives electrical(digital) information i2 on the outer contour 3 c of the body 3. Thesignals i1 and i2 are thus representative of the adjustment of thelevelling function, and the reading function is supplied tomanufacturing equipment, preferably CAD equipment 14 of known type. TheCAD equipment has an input 14 a for receiving the said signals i1 andi2. They can be supplied via any form of transport medium TM, forexample telecommunications and/or computer network, Internet, post, roadtransport, etc.

The CAD equipment has an image screen 14 b (or other type ofpresentation means, for example sound reproduction). It also includes aterminal 14 c by means of which one or more users 15 can cooperateinteractively with the equipment in a manner known per se. With the aidof the signal transmissions i1 and i2 of the levelling function and ofthe reading Function, an accurate second representation or simulation ofthe original model is created in the CAD equipment. In the CADequipment, by means of interaction, a dental construction, in this casea dental bridge, 16 can be built up on the representation which iscreated in the CAD equipment of the tooth remnant representation 2 a′, 3a′, 4 a′ and 5 a′. The dental bridge construction can be designedaccording to dental rules and in accordance with dental rules. In theFIGS., 3 b′, 4 b′ and 5 b′ show a part of the side surfaces of thesimulated tooth remnant representations.

The dental bridge 16 is dimensioned according to dental rules, and theimportant aspect in this respect is the establishment of contactsurfaces 17, 18 and 19 which have to be defined in terms of directionand position. With the aid of the CAD equipment 14, it is possible toproduce a replica of each simulated dental bridge part 20, whose contactsurfaces are indicated by 20 a and 20 b. Each tooth remnantrepresentation 2, 3, 4, 5 according to FIG. 1 is read as describedabove. A replica 20 of the respective simulated dental bridge part isproduced thereafter.

In accordance with the invention, position-fixing members will be usedfor obtaining the correct orientation of each replica produced, asdescribed below.

Replicas 20 of dental bridge parts thus produced must be applied toreplicas of tooth remnant representations 3′. The last-mentionedreplicas are in turn. applied on or comprise holding members, reference3 b′ in FIG. 3 denoting the Holding member for the replica 3′ producedby means of the CAD equipment. Each holding member has the form of orcomprises a part which runs in the longitudinal direction of the replica3′ and which externally can have the form of a cylinder. Each replica 3′with associated holding member 3 b′ is applied, according to theinvention, on a mounting member or a bearing unit 23. Before theapplication, the bearing unit is provided with bore holes 24, whoselongitudinal axes 2 a″, 3 a″, 4 a″, 5 a″ correspond in terms of positionand inclination to the positions and inclinations of the original model,or of the simulated model on the screen 14, for the tooth remnantrepresentations 2, 3, 4 and 5. By using a second levelling function 25,for example in the form of a second levelling panel, holes 24 can beformed with boring equipment 26 so that the positions 24, 24 a, 24 b and24 c and the inclinations of the longitudinal axes 2 a″, 3 a″, 4 a″ and5 a″ of the holes correspond to the original model's correspondingpositions and inclinations. The shafts of the second levelling panel areindicated by 27 and 28.

The second levelling panel is provided with control equipment 29 foradjusting the position of the plane 25. The boring equipment 26 iscontrolled in a known manner by means of the unit 29. The unit 29 iscontrolled from the output 14 d of the CAD unit with signal/signals i4,see FIG. 2. First replicas of the implant and/or tooth remnant parts areapplied on the mounting member and are arranged in the bored holes viatheir holding members. Thereafter, the replicas of the dental bridgeparts are arranged on the first-mentioned applied replicas. The mountingmember or the bearing plane 23 according to FIG. 3 is transferredaccording to FIG. 4 to welding equipment 30, preferably laser-weldingequipment, whose laser-welding electrodes are symbolized by 31. Thelaser-welding equipment is supplied with information i4 from the CADequipment, which information i4 includes information on the directionsand positions of the contact surfaces 17, 18, 19. In the weldingequipment, the construction parts 16 a, 16 b, 16 c and 16 d of theconstruction 16 are thus welded together via the said defined contactsurfaces 17′, 18′ and 19′. The result (the product) obtained from thewelding equipment, i.e. the dental bridge in question, is symbolized by32. In FIG. 4, the holding members of the replicas 2′, 3′, 4′ and 5′ areindicated by 2 b′, 3 b′, 4 b′ and 5 b′.

A method using an original model 1 to produce a dental construction(product, instrument, etc.) of a dental bridge, a mould for pressing orcasting, etc., can, in one embodiment, be summarized as having thefollowing stages:

a) the tooth remnant representations are read by reading equipment andlevelling function,

b) a reproduction or simulation of all or part of the original model isproduced in CAD equipment with the aid of data from the said reading andlevelling functions,

c) the tooth remnants are represented in the CAD equipment and they aredivided up into tooth remnant parts and are identified in equipment onlongitudinal axes which run in the vertical direction of the toothremnant parts and replicas of the tooth remnant parts are produced bymeans of the CAD equipment, which last-mentioned replicas comprise orare arranged with holding members and position-fixing members,

d) in the CAD equipment, the said construction (product) is created, onthe said simulated tooth remnant parts, the construction is divided upinto construction parts, and the contact surfaces of the constructionparts are identified according to dental rules, and replicas of theindividual construction parts are produced by means of the CADequipment,

e) the produced replicas are mounted on a mounting member or bearingmember so that they form a recreated model with applied construction,

f) the replicas of the construction parts are welded together in weldingequipment in which the bearing member can be installed.

The following stages can be included as subsidiary steps in accordancewith the above:

g) a signal transmission is effected by means of the said levellingfunction, which signal transmission corresponds to the transformation ofeach tooth remnant representation from a starting position and astarting inclination in the original model and/or the reproduction to areading position and reading inclination,

h) a further or second levelling function (25) is controlled with theaid of a signal transmission (i4) stored in or fed to the CAD equipmentin conjunction with bore holes (24) being established for holdingmembers in the mounting member, and

i) on the application of holding members, there are obtained correctinclinations on the longitudinal axes of the replicas the replicas ofthe simulated tooth remnant parts in the mounting member via thereplicas holding members the application of holding members and correctrotational angle positions for the replicas [sic].

A recreated model consisting of the replicas 2 b′, 3 b′, 4 b′ and 5 b′can also include replicas of whole teeth, implants, etc. With therecreated model, the production of the product or the instrument 32 canbe carried out at the same geographical location as the manufacture ofthe recreated model. In FIG. 5, the mounting member is indicated by 33and a bore hole formed using the boring equipment (26 in FIG. 3) isindicated by 34. In addition to exact centring in the direction of thelongitudinal axis, the position-fixing member (identification member) 36must fix the direction of rotation of an actual replica 37 of a toothremnant part relative to the mounting member 33, on which the recreatedmodel is built up.

In the example according to FIG. 5, the position-fixing member comprisesa first unit 38. The position-fixing member can be pressed in from theunderside of the mounting member, cf. direction 39. According to FIG.5a, the unit 38 in the embodiment shown can have a square shape (orother polygonal shape). The corners 38 b extend slightly outside thecross-section of the recess 34 according to FIG. 5a. The mounting memberis made of non-rigid material, for example plastic. By forcing the unit38 into the recess, the edge 38 b can dig into the material of themounting member and in this way give the unit 38 a rotationally fixedposition relative to the member 33.

The position-fixing member also has a bearing member 39 for the replica37. The latter is made with a corresponding bearing member 40 whichcooperates with the bearing member 39 in a rotationally rigidconnection. In the illustrative embodiment, the member 39 consists of acylindrical peg firmly connected to the unit 38. The second bearingmember 40 has a recess 41 which can cooperate with the peg. Externally,the member 40 can have a cylindrical shape. The unit 38 has on its top astop unit 42, for example a semicircular stop unit. At its lower end theunit 40 is designed with a corresponding semicircular part 40 a which,in the position of the replica 37 on the mounting member 33 according toFIG. 5, is opposite the heel 42 so that the side surfaces 42 a and 40 bof the semicircular parts are opposite each other and bear against eachother. The unit 40 is arranged in a fixed manner in the replica 37. Theposition-fixing member 38, 39, 42 is thus pressed in from underneath sothat the peg 39 projects above the top surface 33 a of the mountingmember. The replica with the member 40, 42 is applied from above andacquires a rotationally fixed position on the mounting member and aninclined position which coincides with the longitudinal axis 35 of thebore hole.

The invention is not limited to the embodiment shown above by way ofexample, but can be modified within the scope of the attached patentclaims and the concept of the invention.

What is claimed is:
 1. An apparatus for recreating all or part of adental product model having a number of parts, comprising: a means forobtaining information representative of the position and angle ofinclination for the longitudinal axis of each of said number of partswithin said model, said number of parts being at least one part selectedfrom the group consisting of: (a) a tooth remnant replica part, and (b)an implant part; a means for simulating said number of parts within saidmodel using said information; a means for individually producing saidnumber of parts, using said information, with each said part having acorresponding position fixing member used to determine said each part'sposition of rotation and inclination within said model; and a means forboring a hole in a mounting member according to said position and angleof inclination for said longitudinal axis of said position fixing memberusing said information to control said boring means and a levelersupporting said mounting member, wherein said mounting member hole isbored to receive said position fixing member, corresponding to each saidpart, so that each said part's position and inclination within saidmodel accords with said representative information.
 2. The apparatusaccording to claim 1, wherein: said producing means forms each saidtooth remnant replica part to receive a corresponding implant part. 3.The apparatus according to claim 2, further comprising: a means forwelding a plurality of implant parts together, when said implant partsare arranged on said tooth remnant replica parts according to saidmodel, at contact surfaces between said plurality of implant parts usingsaid information to determine said contact surfaces and control saidwelding means.
 4. The apparatus according to claim 1, furthercomprising: a mounting means for mounting each said position fixingmember into said mounting member from an underside of said mountingmember.
 5. The apparatus according to claim 1, wherein: said means forobtaining information establishes a signal transmission used to controlsaid boring means and said leveler.
 6. The apparatus according to claim1 wherein: said producing means forms each said position fixing memberwith a first unit and a second unit, said first unit having a first stopformed to cooperate with said mounting member to prevent rotation ofsaid first unit relative to said mounting member, said second unitformed to fasten said corresponding part to said position fixing memberand having a second stop to prevent rotation of said corresponding partin relation to said mounting member.
 7. The apparatus according to claim6, wherein: said producing means forms a semicircular end on each saidfirst stop and said second stop and said semicircular ends of said firstand second stops cooperate via the straight edges of said semicircularends to prevent rotational movement between said mounting member andsaid part corresponding to said position fixing member.
 8. An apparatusfor recreating all or part of a dental product model having a number ofparts, comprising: a means for obtaining information representative ofthe position and angle of inclination for the longitudinal axis of eachof said number of parts within said model, said number of parts being atleast one part selected from the group consisting of: (a) a toothremnant replica part, (b) an implant part, and (c) a whole tooth replicapart; a means for simulating said number of parts within said modelusing said information; a means for individually producing said numberof parts, using said information, with each said part having acorresponding position fixing member used to determine said each part'sposition of rotation and inclination within said model; and a means forboring a hole in a mounting member according to said position and angleof inclination for said longitudinal axis of said position fixing memberusing said information to control said boring means and a levelersupporting said mounting member, wherein said mounting member hole isbored to receive said position fixing member, corresponding to each saidpart, so that each said part's position and inclination within saidmodel accords with said representative information.
 9. A method forrecreating all or part of a dental product model having a number ofparts, comprising: obtaining information representative of the positionand angle of inclination for the longitudinal axis of each of saidnumber of parts within said model, said number of parts being at leastone part selected from the group consisting of: (a) a tooth remnantreplica part, and (b) an implant part; simulating said number of partswithin said model using said information; producing said number ofparts, using said information, with each said part having acorresponding position fixing member used to determine each said part'sposition of rotation and inclination within said model; boring a hole ina mounting member according to said position and angle of inclinationfor said longitudinal axis of said position fixing member using saidinformation to control said boring means and a leveler supporting saidmounting member; and mounting said position fixing member correspondingto each said part so that each said part's position and inclinationwithin said model accords with said representative information.